2016-2020 Newmar Motorhomes Recall 20V421: Exterior Lights

Recall 20V421 affects 3,202 2016-2020 Newmar motorhomes with damaged rear PDMs that can disable exterior lights. Repair is free at any franchised Newmar dealer.

What's wrong?

The rear Power Distribution Module, or PDM, on these 2016-2020 Newmar motorhomes is an electrical control box mounted at the back of the chassis. It routes power to rear exterior lights, including marker lights, brake lights, and the left turn signal. When it works normally, the lights tell drivers behind the motorhome when it is braking, turning, or visible at night.

On included Ventana Le, Dutch Star, New Aire, Ventana, London Aire, Essex, Kountry Star, and Mountain Aire motorhomes, the PDM circuit board was damaged during manufacturing. The board was bent under stress, and vehicle use can turn that damage into intermittent open circuits. An open circuit is a break in the electrical path, so the light does not receive power when it should.

What you notice is straightforward: the rear marker lights, brake lights, or left turn signal fail to work. If the brake lights do not illuminate during braking, drivers behind the motorhome are not warned of a braking event, which increases crash risk.

Who's affected?

Spans 8 Newmar motorhome models across 5 model years, tied to turn signal, brake light, and electrical system components.

A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific motorhome.

What's the safety risk?

If rear marker, brake, or turn signal lights stop working, other drivers have less notice of your vehicle, braking, or lane change. That loss of visibility and signaling increases crash risk, especially when traffic is close. Drive cautiously and schedule the repair soon. Repair is free at any franchised Newmar dealer.

What should I do?

1. Check your VIN to confirm your 2016-2020 Newmar Ventana Le, Dutch Star, New Aire, Ventana, London Aire, Essex, Kountry Star, or Mountain Aire motorhome is included in this recall.
2. Contact a franchised Newmar dealer to schedule the free PDM replacement that fixes the rear marker light, brake light, or turn signal failure.
3. Bring the recall notice if Newmar mailed one. If not, reference recall number 20V421 when you call.
4. Call Newmar customer service at 1-800-731-8300 with questions about scheduling or dealer routing.
5. Drive with extra space until the repair is complete, since failed rear marker lights, brake lights, or turn signals make the motorhome harder for other drivers to see.

What happens at the repair

At the dealer, the rear mounted Power Distribution Module, or PDM, is replaced free of charge. The PDM routes power to the rear marker lights, brake lights, and turn signals, so the repair focuses on restoring the lighting circuits affected by the damaged module. Parts and labor are covered under the recall. Ask the service desk to confirm that the prior inspection-only remedy is recorded before the replacement work is closed out.

Timeline

Frequently asked questions

More information

Source documents

• Download Recall Document (PDF) (PDF) · RCLYLY
• Download Quarterly Report (PDF) · RCLQRT
• Download Recall Report (PDF) · RCLRPT
• Download Recall Acknowledgement (PDF) · RCAK

This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →